Practice question

That points to A: Cl⁻ and malate²⁻. Compared with the other options, Cl⁻ and malate²⁻ is the one that correctly describes the STOMATA MOVEMENT concept. The wrong ones are B) NO₃⁻ only; C) SO₄²⁻; D) PO₄³⁻. If you’re stuck, eliminate anything that contradicts a basic fact you already know for this topic.